Power and phone service disrupted; Christchurch hit by big quake last month

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WELLINGTON, New Zealand — An earthquake rattled the southern New Zealand city of Christchurch on Tuesday, cutting power and phone service and sending some residents running into the streets just weeks after a more powerful quake caused extensive damage.

New Zealand's geological agency GNS Science said Tuesday's magnitude 5.0 quake was centered six miles (10 kilometers) southwest of the city and just five miles (nine kilometers) below the surface.